.TH PATH_ID 8 "April 2007" "" "Linux Administrator's Manual"
.SH NAME
path_id \- udev callout to provide the shortest possible unique hardware path
to a device for the Linux Persistent Device Naming scheme
.SH SYNOPSIS
DEVPATH=<devpath>; path_id

path_id <devpath>
.SH "DESCRIPTION"
.B path_id
is normally called from a udev rule, to provide udev a unique hardware path for
a device. Udev can use this information to create symlinks in /dev/ to the real
device node.
.SH EXAMPLES
For all block devices on a system:

.nf
for i in `find /sys/class/block`
do
	DEVPATH="`echo $i | sed -e 's@^/sys\|/dev@@g'`"; path_id
done
.fi
.SH SEE ALSO
.BR udev (7)
.SH AUTHORS
Developed by Hannes Reinecke <hare@suse.de>.